Hydraulic gun



June 1, 1937. c. F. FREDE ET AL HYDRAULIC GUN Fil ed April 18, 1928 4Sheets-Sheet l 5 E M if y WWW E 5% VF T 7% T r June 1, 1937. I c. FREDEET AL 2,082,330

HYDRAULIC GUN Filed April 18, 1928 4 Sheets-Sheet 3 TTOR 5Y5 Jung 1,1937.

c. F. FREDE ET AL HYDRAUL IC GUN Filed April 18, 1928 4 Sheets-Sheet 4Ii w. \\\\\\\\\\\Tw IN l ENTO P Char/es F Freda Kmf 6. Howard I :Qf-r-o/\/E vs Patented June 1, 1937 UNITED STATES PATET QFFECE HYDRAULIC GUNCharles F. Frede and Karl S. Howard, St. Louis,

MO., assignors to Commonwealth Steel Company, Granite City, 111., acorporation of New Jersey Application April 18, 1928, Serial No. 271,094

19 Claims. (Cl. 29957) Our invention relates to hydraulic guns andeither direction to raise or lower barrel in the has been developed foruse particularly in conframe. This rotation of pinion 'l is accomnectionwith the cleaning of cores and mold sand plished by means of a motor 8which maybe from large castings. It is to be understood that mounted onan extension of frame I but is shown 5 our invention is not limited tosuch use but may as mounted on the travelling carriage 2 to which beused in fire fighting equipment, in hydraulic frame l is attached. Motor8 is operatively mining, and in various other industrialapplicaconnected to the shaft 9 of pinion 1 by means tions wherever itis desired to direct a stream of a gear reducer l0. of fluid at anydesired angle from the discharge The upper end of tube 5 carries asleeve 5a 10 end of a nozzle and, particularly, when it is dewhich formsa bearing for an innerbarrel H 10 sired to control such a stream from aremote which extends beyond both ends of barrel 5 and po tat its upperend carries a bushing 12 provided In our copending application SerialNo. 306,347 with bearing 13 for journalling the upper end filedSeptember 17, 1928 we illustrate and deof an axially disposed shaft 14.Bushing I2 is 15 scribe the application of our gun to the partickeyed toa barrel head l5 which carries aworm 15 ular field referred to inconnection with the wheel it which is driven by a worm, not shown,cleaning of castings. In this particular applimounted on a shaftconnected to motor I! which cation it is essential that a heavy volumeof fluid is carried by a bracket l8 on sleeve 5a. The under highpressure be forced into every recess worm wheel l6 and its worm areenclosed in a of a complicated casting having pockets facsuitablehousing I9. ing in all directions and it is necessary that this Theupper end of head l5 carries a'frame 22 operation may be controlled by aperson located in which is mounted a motor 23 and a speed reat a remotepoint where he can be protected ducer 24 by means of which shaft I4 maybe from the stream of water and from the flying rotated in eitherdirection.

25 sand, core rods, and other debris washed out by It will be understoodthat motors 8, l1, and the gun. 23, will be provided with individualcables lead- In the accompanying drawings which illustrate ing to aremote control point where suitable a selected embodiment of ourinventionswitches and other electrical apparatus will be Figure 1 is afront elevation of our device approvided for selectively operating themotorsas plied to a travelling carriage. desired. 30 Figure 2 is avertical section taken on the line The weight of barrel II, bushing 12,head l5 22 of Figure l. and the parts carried thereby, is rotatablyFigure 3 is an enlarged detail of the nozzle mounted on sleeve 5a by ananti-friction device shown in Figure 2. 20 through bracket 2| on theupper end of Figure 4 is a horizontal section taken on line sleeve 5a.35 44 of Figure 2 and showing the discharge tip The lower end of barrelll mounts a flange of the nozzle rotated 90 in a vertical plane from 25which is provided with a bearing for the lower the position shown inFigures 2 and 3. end of shaft l4 and also mounts a nozzle casing Figure5 is a top view of our gun mounted on 26 forming an extension of thebarrel. An L- 40 a suitable carriage. shaped nozzle 21 is journalled inone side of cas- 40 Figure 6 is a section corresponding to Figure ing26, by means of roller bearings 28, and in- 3 but illustrates a modifiedform of nozzle. eludes an integral spider 3| and central bearing Figure7 is a similar section illustrating anelement 32 which is journalled inthe opposite other modification. side of casinglZB by means of a rollerbearing Figures 8 and 9 are sections taken approxi- 29. The inner end ofnozzle 2'! is geared to shaft 45 mately on lines 83 and 9-4-3 of Figure'7. l4 by means of miter gears 30. The outer end The body or frame ofthe gun is indicated at of nozzle 21 is provided with a renewable dis- Iand is shown as being mounted upon a travcharge tip 33. 1 ellingcarriage 2 whereby the gun may be shift- The lower portion of tube 5carries a bumper ed along a track 3. Frame l is provided with 34 adaptedto abut against the lower face 35 50 bearings 4 in which an outer tubeor barrel 5 of the frame I to arrest the upward movement is slidablymounted. Tube or barrel 5 is proof the barrels, and the downwardmovement of vided with a rack 6 on one side and a pinion I the tube andbarrel is similarly arrested by enmounted. on a shaft 9, journalled inframe I, gagement of the lower end of sleeve 5a with the meshes with therack 6 and may be rotated in upper end of frame I. I 5

Water is admitted to the gun through inlet connection 36 which projectsoutwardly from sleeve 5a. The water then passes from sleeve 5a (Figure2) through the perforations 31 in upper end of barrel H and out of thenozzle at the lower end of the gun. Annular gaskets 38 of cup shapedcross section are provided between sleeve 5a and barrel H to preventleakage through the joints of these elements. Leakage through the innerupper end of barrel H is prevented by the use of a stufiing box 39 inupper municating therewith and extending beyond the ends thereof, amotor assembled with said tube end of bushing l2.

Operation-Frame I, motor 8 and its speed reducer are stationary oncarriage 2. Tube 5 and all of the remaining structure reciprocatevertically in frame I. Barrel H and all of the parts carried thereby,including the nozzle casing 26 and the nozzle 21, may be rotated aboutthe axis of tube 5 by means of the motor I! mounted on the tube. Shaftl4 maybe rotated on the same axis by means of the motor 23 and rotationof shaft l4 will rotate nozzle 21 about the horizontal axis of its inletleg. Hence, it will be seen that nozzle 2'! may be raised and loweredbodily, may be rotated in vertical planes, parallel with the axis of thetube and barrel, to various positions, one of which is indicated inFigure 4, and, by rotation of the inner barrel, may be rotated in ahorizontal plane, irrespective of the angle of inclination of thedischarge leg. Hence fluid may be discharged from the nozzle in anydirection.

In'Figure 6, we illustrate a modified construction in which the mainportion of the discharge nozzle .40 extends laterally from the lower endof the inner barrel and is provided withfla removable tip projectingaxially of the main portion of the nozzle. This tip may be removed andan angular one substituted therefor. When an angular tip is placed uponthe end of portion 40 the nozzle may be rotated to function the same asthe nozzle 21 in the barrel 26 of the structure shown in Figure 2. Attimes it may be unnecessary to utilize the extreme range of direction ofdischarge and it may be desirable to obtain the greater force of astream that may be had through a straight nozzle. This form of ourinvention will make it possible to use either arrangement according tothe most desirable function.

In Figures 7, 8, and 9, we illustrate another modification in which thelower end of the barrel 4| mounts a member 42 for supporting the nozzle43, the bearings 44 for the latter forming a socket joint for receivingthe ball-shaped portion 45 of the nozzle. This provides for universalmovement of the nozzle. A gear 46 is journalled on the side of member 42and is driven by a pinion 41 on shaft 48. 'A crank 49 is connected topinion 46 and the inner end of nozzle 43 and provides for directing theouter end of the nozzle upwardly or downwardly as may be desired.

This arrangement avoids the use of a nozzle with a right angle bend andenables the opera-' tor to direct a stream in almost as many directionsas provided by the preferred structure.

Various other changes in the structure may be made without departingfrom the spirit of our invention, and we contemplate the exclusive useof such modifications as are included in the scope of our claims.

, We claim:

1. In a hydraulic gun, a frame, an outer tube, means on said frame forreciprocating said tube lengthwise, an inner barrel within sa tu ndcommunicating therewith, means on said tube for rotating said barrel, adischarge nozzle with angularly disposed legs with its inlet legextending transversely of the axis of said barrel and journalledtherein, means in said barrel for rotating said inlet leg, and a fluidinlet to said tube.

2. In a hydraulic gun, a frame, an outer tube slidable in said frame, arack extending longitudinally of said tube, a motor and pinion assembledwith said frame and driving said rack, an inner barrel rotatable in saidtube and comand geared to said barrel for rotating the latter in saidtube, a discharge nozzle with angularly disposed legs, with its inletleg extending transversely of said barrel and rotatable therein, and amotor assembled with said barrel and operatively connected to saidnozzle to rotate the latter in said barrel, and a fluid inlet to saidtube.

3. In a hydraulic gun, a frame, a barrel rotatably mounted thereon toreciprocate axially and having inlet and outlet openings, a nozzlehaving a leg disposed at an angle to said barrel and journaled in saidoutlet opening and having a leg disposed at an angle to saidfirst-mentioned leg, mechanism on said frame for reciprocating saidbarrel, and mechanism on said barrel for rotating said nozzle, each ofsaid mechanisms being remotely controlled and operating independently ofthe other. I

4. In a hydraulic gun, a frame, a tube mounted thereon to reciprocateaxially, a barrel rotatably mounted in said tube and projecting at eachend beyond said tube, a fluid inletin said barrel adjacent one end, anozzle having a leg disposed at an angle to said barrel and journaled inthe same at the other end and having a leg disposed at an angle to saidfirst-mentioned leg, a bracket on said barrel at the inlet end, a motoron said bracket, and mechanism inside said barrel for rotating saidnozzle from said motor independently of the movement of said tube andsaid barrel. 1 5. In a hydraulic gun, a frame, a tube mounted on saidframe to reciprocate axially, a barrel rotatably mounted in said tubeand having fluid inlet and outlet openings, a nozzle having a legdisposed at an angle to said barrel and journaled in. said outletopening and having a leg disposed at an angle to said first-mentionedleg, means on said frame for reciprocating said tube, means on said tubefor rotating said barrel, and means on said barrel for rotating saidnozzle, each of the said means operating independently of the others andbeing remotely controlled.

6. A hydraulic machine comprising a pipe, means for admitting water intosaid pipe, a nozzle for conducting water from said pipe, means forsupporting said nozzle for turning movements about an axis at an anglewith respect to the axis of said pipe, a shaft supported in said pipe,mechanism for rotating said shaft, gearing for rotating said nozzle bysaid shaft, and mechanism for rotating said pipe irrespective of whethersaid shaft is being rotated or not.

7. A hydraulic machine comprising a longitudinally movable support, awater pipe mounted in said support, means for admitting water to saidpipe, an angular nozzle'supported for turning movements in connectionwith said pipe-gearing enclosed in said pipe for rotating said nozzle,mechanism supported by said support for operating said gearing, andmechanism for moving said support longitudinally.

3.- A hydraulic machine comprising a longitudinally movable support, awater pipe mounted in said support, means for admitting Water to saidpipe, an angular nozzle supported for turning movements in connectionwith said pipe, gearing enclosed in said pipe for rotating said nozzle,mechanism supported by said support for operating said gearing,mechanism for moving said support longitudinally, and mechanism forrotating said pipe.

9. A hydraulic machine comprising a support, gearing for moving saidsupport longitudinally, mechanism for operating said gearing, a waterpipe mounted in and operated by said support, an angular dischargenozzle in connection with said pipe, a shaft extending axially in saidpipe, gearing for rotating said nozzle by said shaft, and a motor forrotating said shaft.

10. A hydraulic machine comprising a tubular member, mechanism formoving said member longitudinally in opposite directions, a water pipemounted for rotation in said tubular member, mechanism for rotating saidwater pipe about its axis, a shaft extending longitudinally through saidtubular member, mechanism for rotating said shaft, an angular nozzleopening laterally from said water pipe, and mechanism for rotating saidnozzle by said shaft.

11.. A hydraulic machine comprising a support, mechanism for moving saidsupport longitudinally in opposite directions, a rotary pipe mounted insaid support, mechanism for rotating said pipe about its axis whethersaid pipe be in longitudinal motion or stationary, an angular nozzleopening laterally from said pipe, a shaft enclosed in said pipe,mechanism for rotating said shaft, and mechanism for rotating saidnozzle by said shaft.

12. A hydraulic machine comprising a longitudinally movable support,means for supporting and guiding said support in its longitudinalmovements, a rack in connection with said support, a gear meshing withsaid rack, a motor for rotating said gear, a water pipe supported forrotation in said support, mechanism for rotating said Water pipe aboutits axis, an angular discharge nozzle opening from said pipe, a shaftenclosed in said pipe, a motor, mechanism for rotating said shaft bysaid motor, and gearing for rotating said nozzle by said shaft.

13. A hydraulic machine comprising a longitudinally movable support,means for supporting and guiding said support in its longitudinalmovements, a pipe mounted for rotation in said support and forlongitudinal movements thereby, mechanism for moving said supportlongitudinal- 1y, a motor supported by and movable with said support,and gearing operated by said motor for rotating said pipe.

14. A hydraulic machine comprising a longitudinally movable support,mechanism for supporting and guiding said support in its longitudinalmovements, a pipe supported for rotation in and longitudinal movementsby said support,

an angular nozzle in connection with said pipe, gearing enclosed in saidpipe for rotating said nozzle, and a motor supported by and movable withsaid support for rotating said nozzle,

15. A hydraulic machine comprising a member mounted for longitudinalsliding movements in opposite directions, a pipe supported by saidmember, an angular nozzle swiveled at one end of said pipe, gearing insaid pipe for rotating said nozzle, and a motor supported by and movablewith said member for operating said gearing.

16. A hydraulic machine comprising a member mounted for longitudinalsliding movements in opposite directions, a pipe supported by saidmember, an angular nozzle swiveled at one end of said pipe, gearing insaid pipe for rotating said nozzle, a motor supported by and movablewith said member for operating said gearing, and mechanism for rotatingsaid pipe irrespective of whether said nozzle is in rotation or not.

17. A hydraulic machine comprising a support, a member mounted forlongitudinal sliding movements in opposite directions in said support,mechanism mounted on said support for moving said member longitudinallyin opposite directions in said support, a pipe mounted in and movedlongitudinally by said support, an angular nozzle swiveled to said pipe,a shaft extending axially through said pipe, a motor mounted on saidmember for rotating said shaft, gearing in said pipe for rotating saidnozzle by said shaft, and means for admitting water to said pipe betweensaid motor and said nozzle.

18. A hydraulic machine comprising a support,

a member mounted for longitudinal sliding movements in oppositedirections in said support, mechanism mounted on said support for movingsaid member longitudinally in opposite directions in said support, apipe mounted in and moved longitudinally by said support, an angularnozzle swiveled to said pipe, a shaft extending axially through saidpipe, a motor mounted on said member for rotating said shaft, gearing insaid pipe for rotating said nozzle by said shaft, means for admittingwater to said pipe between said motor and said nozzle, and mechanism forrotating said pipe in any of the longitudinally positions thereof andirrespective of Whether said nozzle is in rotation or not.

19. A hydraulic machine comprising a support, a member mounted forlongitudinal sliding movements in opposite directions in said support,mechanism for moving said member longitudinally in opposite directionsin said support, a pipe mounted for rotation in said member, mechanismsupported by said member for rotating said pipe, an angular nozzlepivoted to said pipe below said member, and means mounted on said memberbeyond the opposite end of said pipe from said nozzle for rotating saidnozzle.

CHARLES F. FREDE. KARL S. HOWARD.

